World human powered speed record - 53.43 miles in an hour
July 6, 2006 The world one hour record for human powered vehicles was broken early on the morning of July 2 when "Fast Freddy" Markham pedalled 53 ... miles), German Lars Teutenberg (PB 51 miles), and Slovenian Damjan Zabovnik (current European flying ...
9 of the world's greatest tunnels
Work on the tunnel started in 1964 and was completed in 1988. Length: 53 kilometers (32.9 miles) Fast fact: In 1976, construction workers hit a patch of soft rock and water gushed into the tunnel at a rate of 80 tons per minute. The leak took two months to ...
Tesla Roadster Breaks EV World Record: 313 Miles on Single Charge (501 KM)
6 km), with the car showing 38 miles (61 km) left on the battery. The Tesla's 53 kWh lithium-ion battery was rated at 244 miles with the EPA's methodology. Above: "The security seal was applied to the charge port door when we started the journey.
What is a Satellite?
Saturn, for example, has at least 53 natural satellites ... anything that crosses the Karman Line at an altitude of 100 kilometers (62 miles) is considered in space. However, a satellite needs to be going fast — at least 8 km (5 miles) a second ...
What is an astronomical unit?
For general reference, we can say that one astronomical unit (AU) represents the mean distance between the Earth and our sun. The AU is approximately 150 million kilometers or 93 million miles. It is approximately 8 light-minutes. More exactly, one ...